First, field management
After the leeks are returned to the green, the weeds in the upper part of the ground should be removed as early as possible, and the sputum should be cleaned and the sputum should be arranged so that the base of the plant can receive the sunlight well, increase the ground temperature and promote germination. When the soil is thawed and sprouted, the dung water can be traced once to promote bud regeneration. After 3 to 4 days, the soil was ploughed once, and the soil covered with wintering was turned into the soil. Cultivating loose soil can increase soil temperature, promote seedling growth and prevent weeds. The seedling height is about 15 cm and the water is poured once again to improve the quality of the spring sorghum and then harvest.
The amount of watering time and watering amount depends on the weather and soil moisture at that time.
When the soil is in good condition, you can water it after receiving the first knife. After each harvest, the soil should be ploughed, flattened, and gradually grown with the growth of the plants. In addition to the application of the base fertilizer, the leek should also require “knife and topdressingâ€, that is, it must be topdressed 1 or 2 times after each harvest. The top dressing should be carried out 3 to 4 days after harvesting. The wound to be harvested is healed and the new leaves are applied when they are grown. Immediately after harvesting, the top dressing is easy to cause fat damage. Topdressing should be based on quick-acting nitrogen fertilizer and human excrement, which can be applied with water or ditch, and the dung water must be fully rotted to prevent damage.
Plants with more than 3 years need special management such as root removal and soil cultivation: the roots are removed before the germination of early spring leeks.
When the soil has been thawed before and after the convulsion, the root soil is excavated with irons, and the depth is about 6 cm. The soil between the plants in each plexus is removed, reaching the roots, revealing the rhizome, and removing the dead roots and the thin branches. Spread the excavated soil in the rows and then dry it, then pinch the roots and fill it with fine soil. Soil: The soil should be thawed in the early spring and the germination of the sprouts; the thickness of the soil depends on the height of the roots, and the soil is generally 3 to 4 cm per year. The fine soil requires the soil to be fertile and physically good, and it is used after being sifted and piled up in the sun.
Second, the leek pests
éŸè›†: In the spring irrigation, pesticide poisoning can be added. In the late April, the adult emergence period can kill 600 times of the killing mites. In the first half of May, 40% of the oxidized dimethoate 800 times can be used to control the roots. Underground pests of cockroaches and cockroaches: In the 3, 4, and 5 months, it can be used as a poison bait with 90% trichlorfon 150g 30 times liquid in the leek, mixed with fried wheat bran or bean cake 5kg. Sprinkle into the day or in the field every 3 to 4 meters to plan a bowl of large pits, put the poison bait and cover the soil, plan a row every 2 meters or so, to lure.
Third, amaranth chemical weeding
New root leeks weed before buds. Use 33% weeding emulsifiable concentrate, spray 100-150 ml per acre of water, valid for 45-50 days, use 48% dilamine emulsifiable concentrate 200 ml per acre, apply shallow cultivating after application to mix the medicinal and soil, valid for 30 days. When the germination is carried out, the 50% Ligulong WP, or 25% herbicide ether emulsifiable concentrate of 750-1000 ml per acre occurs. Old root leeks are highly resistant to the disease. After each cut, the wounds healed. 48% of Fluramine emulsifiable concentrate can be used in 100-150 ml per mu, or 50% of turf-free WP can be 100-150 g. 33% weeding emulsifiable concentrate per acre. 100 to 200 ml, 25% herbicide ether emulsifiable concentrate 500 ml, 48% dilamine emulsifiable concentrate 200 ml per mu, 50% herbicide No. 1 wettable powder 150 g per mu. The above-mentioned agent, optionally, is sprayed with soil, or 20 to 30 kg of fine soil is sprayed with 20% of herbicidal granules, and 1.25 to 1.5 kg of fine soil is also applied.
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